Eta in the nuclear medium within a chiral unitary approach
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Eta in the nuclear medium within a chiral unitary approach

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Eta in the nuclear medium within a chiral unitary approach

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Inoue, T.; Oset Báguena, Eulogio Perfil
Aquest document és un/a article, creat/da en: 2002
The self-energy of an eta meson in the nuclear medium is calculated in a chiral unitary approach. A coupled channel Bethe-Salpeter equation is solved to obtain the effective eta-N interaction in the medium. The base model reproduces well the free space pi-N elastic and inelastic scattering at the eta-N threshold or N^*(1535) region. The Pauli blocking on the nucleons, binding potentials for the baryons and self-energies of the mesons are incorporated, including the eta self-energy in a self-consistent way. Our calculation predicts about -54 -i29 MeV for the optical potential at normal nuclear matter for an eta at threshold but also shows a strong energy dependence of the potential.

    Inoue, T. Oset Báguena, Eulogio 2002 Eta in the nuclear medium within a chiral unitary approach Nuclear Physics A 710 3-4 354 370
http://dx.doi.org/10.1016/S0375-9474(02)01167-3
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